<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>作业</title>
    <style>

        .z1{
            width: 610px;
            height: 376px;
            background-color: grey;
            float: left;
            margin: 5px;
        }
        .z2{
            width: 370px;
            height: 376px;
            background-color: yellow;
            float: left;
            margin: 5px;
        }
        .z3{
            width: 366px;
            height: 233px;
            background-color: pink;
            float: left;
            margin: 5px;
        }
        .z4{
            width: 198px;
            height: 233px;
            background-color: #0aa1ed;
            float: left;
            margin: 4px;
        }
        .z5{
            width: 198px;
            height: 233px;
            background-color: #0aa1ed;
            float: left;
            margin: 4px;
        }
        .z6{
            width: 198px;
            height: 233px;
            background-color: #0aa1ed;
            float: left;
            margin: 4px;
        }


    </style>
</head>
<body>

    <div class="z1" style=" text:center">gray</div>
    <div class="z2">yellow</div>
    <div class="z3">pink</div>
    <div class="z4">blue</div>
    <div class="z5">blue</div>
    <div class="z6">blue</div>

</body>
</html>